CVE-2026-115642 OpenStack keystonemiddleware - Broken Access Control

OpenStack keystonemiddleware < 13.0.2 contains a broken access control vulnerability caused by improper validation of custom X-Service-Token header, letting attackers with application credentials bypass restrictions and escalate privileges.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.51% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-863

Vendor fix

Upgrade to version 13.0.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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